Mitsubishi Heavy Industries Limited

Akio Minamiyama

Koji Okimura

Tomochika Hamamoto

Kazuyuki Hinami

Takao Konno

Yutaka Nishitsuji

In an installation device of a reactor repair device and a method, an installation pole () connected with an upper portion of a water jet peening device (), a lifting device () that can suspend and support an upper portion of the installation pole () and can lift the installation pole () from a work floor (), a moving device () that can move the lifting device () in two directions intersecting in a horizontal direction, and a position adjustment device () that can move the installation pole () in the horizontal direction in a state where the installation pole () is supported by the lifting device ().

Installation device of reactor repair device and method

Provided is a water jet peening apparatus and a water jet peening method including: a clamping cylinder () which is able to be disposed at the outer peripheral side of an instrumentation nozzle () with a predetermined gap therebetween; a clamping piece () which is able to fix the clamping cylinder () to the instrumentation nozzle (); a nozzle guide () which has a cylindrical shape, is provided inside the clamping cylinder (), and is positioned to a position adjacent to the upper end of the instrumentation nozzle (); an inner surface WJP nozzle () which is movable upward and downward inside the nozzle guide (); and a drainage hole () which radially penetrates the nozzle guide (). Accordingly, it is possible to improve the safety of the operation by preventing a thimble tube from being popped out due to a water jet peening operation.

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Tokyo, Japan

Akio Minamiyama